By utrasonic hot embossing and welding, at KEmikro microfluidic components and systems are fabricated with small effort from thermoplastic foils. A promissing field of application are so called lab-on-a-chip systems. That are microfluidic channel systems in which small amounts of samples from chemics, biology, or medicine are mixed, analysed, and/or processes.
When several levels of micro channels are arranged on top of each other, separated by polymer walls, just a few 100 µm in thickness, a micro heat exchanger is generated allowing good control of the temperature in a center layer. That way, e.g., chemical reactions can by analysed and precessed at exactly defined conditions.
At KEmikro also active micro valves were developed for the control of fluid flows.